Home / 751,572.30-1,127,358.45-698,428.20

Finding the Fourth Proportional to 751,572.30, 1,127,358.45 and 698,428.20

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Solution

The fourth proportional to 751,572.30, 1,127,358.45 and 698,428.20 is: 1,047,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,572.30 : 1,127,358.45 = 698,428.20 : x
  2. Step 2: Convert to fraction form
    751,572.30/1,127,358.45 = 698,428.20/x
  3. Step 3: Cross multiply
    751,572.30x = 1,127,358.45 × 698,428.20
  4. Step 4: Simplify right side
    751,572.30x = 787,378,932,988.29
  5. Step 5: Solve for x
    x = 787,378,932,988.29/751,572.30
  6. Step 6: Final answer
    x = 1,047,642.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.